package com.sniper.springmvc.utils;

import java.io.*;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;

public class JavaShellUtil {
    // 基本路径
    private static final String basePath = "/tmp/";

    // 记录Shell执行状况的日志文件的位置(绝对路径)
    private static final String executeShellLogFile = basePath
            + "executeShell.log";

    // 发送文件到Kondor系统的Shell的文件名(绝对路径)
    private static final String sendKondorShellName = basePath
            + "sendKondorFile.sh";

    public static int executeShell(String shellCommand) throws IOException {
        int success = 0;
        StringBuffer stringBuffer = new StringBuffer();
        BufferedReader bufferedReader = null;
        // 格式化日期时间，记录日志时使用
        DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:SS ");

        try {
            stringBuffer.append(dateFormat.format(new Date()))
                    .append("准备执行Shell命令 ").append(shellCommand)
                    .append(" \r\n");

            Process pid = null;
            String[] cmd = {"/bin/sh", "-c", shellCommand};

            // 执行Shell命令
            pid = Runtime.getRuntime().exec(cmd);
            if (pid != null) {
                stringBuffer.append("进程号：").append(pid.toString())
                        .append("\r\n");
                // bufferedReader用于读取Shell的输出内容 bufferedReader = new
                // BufferedReader(new InputStreamReader(pid.getInputStream()),
                // 1024);
                pid.waitFor();
            } else {
                stringBuffer.append("没有pid\r\n");
            }

            stringBuffer.append(dateFormat.format(new Date())).append(
                    "Shell命令执行完毕\r\n执行结果为：\r\n");
            String line = null;
            // 读取Shell的输出内容，并添加到stringBuffer中
            while (bufferedReader != null
                    && (line = bufferedReader.readLine()) != null) {
                stringBuffer.append(line).append("\r\n");
            }

        } catch (Exception ioe) {
            stringBuffer.append("执行Shell命令时发生异常：\r\n").append(ioe.getMessage())
                    .append("\r\n");
        } finally {
            if (bufferedReader != null) {
                OutputStreamWriter outputStreamWriter = null;
                try {
                    bufferedReader.close();
                    // 将Shell的执行情况输出到日志文件中
                    OutputStream outputStream = new FileOutputStream(
                            executeShellLogFile);
                    System.out.println(executeShellLogFile);
                    outputStreamWriter = new OutputStreamWriter(outputStream,
                            "UTF-8");
                    outputStreamWriter.write(stringBuffer.toString());
                } catch (Exception e) {
                    System.out.println(e.getMessage());
                    e.printStackTrace();
                } finally {
                    outputStreamWriter.close();
                }
            }
            success = 1;
        }
        return success;
    }

    public static void main(String[] args) throws IOException {
        int result = JavaShellUtil
                .executeShell("convert /home/sniper/图片/2015070618434646757.jpg -resize '400x100' /home/sniper/图片/b.jpg");
        System.out.println(result);
    }
}